Hello, I need help, which of the following represent valid probibility values?
0
100%
-0.8
0.001
thanks again
when written in terms of a decimal, a valid probability value, call it P, ranges from $\displaystyle 0 \leq P \leq 1$
when written as a percentage: 0 % $\displaystyle \leq P \leq $ 100%
Note: when an event is certain, it has a probability of 1 or 100%, when an event is impossible, it has a probability of 0
Suppose the lengths of rods are distributed normaly with mean mu and sd sigma.
Then it is possible for a rod to have length mu+signa/3, but the probability that it does is zero.
This is a toy construction but there are real cases where this can be important (fractal noise
comes to mind).
RonL